Michelle Obama Makes Her Final Appearance on The Late Show With David Letterman: "We Could Do Things"

The First Lady made her final appearance on The Late Show With David Letterman Thursday ahead of his retirement, and before diving into the important topics like joining forces, the late-night talk show host and FLOTUS caught up talking about their children.

Letterman, who has an 11-year-old son, sought advice from the mom of two because she has been through the "dark times" of moody teenagers. He explained to her that one day his son could be the epitome of joy and others they just argue "all the time." President Barack Obama's wife revealed one of her daughters—she wouldn't say which—was the same way.

"We call her 'salty biscuit,'" she said. "You never know what you're going to get."

Because Letterman's son is younger, he hasn't yet had to experience the onslaught of parties like FLOTUS has. Malia, 16, and Sasha, 13, are learning to deal with boys entering their daughters' lives.

"Barack is handling that OK," she said of boys courting their daughters. But she insisted that they don't let their status—AKA being the First Family—get in the way of punishing their children. Michelle and Barack put an important emphasis on raising their kids normally.

"We don't let our circumstance become an excuse for them," she said.

"See, I do," Letterman joked of his child. "My son thinks he's being raised in the White House."

But seeing as Letterman is slated to retire and the president's wife will be moving out of the White House in a couple of years, the talk show host asked her what she is going to be up to post-presidential life. It turns out it will involve a lot of hangouts with the 68-year-old talker.

"I think we should hang out together," she said. "You'll have a couple of years. We could do things. I would help you raise your children."

She continued, "I could help you through those dark times." The Late Show host couldn't refuse the offer, no matter how bittersweet it sounded.